@import '../core/theming/palette';
@import '../core/theming/theming';


@mixin md-progress-bar-theme($theme) {
  $primary: map-get($theme, primary);
  $accent: map-get($theme, accent);
  $warn: map-get($theme, warn);

  .md-progress-bar-background {
    background: #{_md-progress-bar-buffer($primary, 100)};
  }

  .md-progress-bar-buffer {
    background-color: md-color($primary, 100);
  }

  md-progress-bar[color='accent'] {
    .md-progress-bar-background {
      background: #{_md-progress-bar-buffer($accent, 100)};
    }

    .md-progress-bar-buffer {
      background-color: md-color($accent, 100);
    }
    .md-progress-bar-fill::after {
      background-color: md-color($accent, 600);
    }
  }

  md-progress-bar[color='warn'] {
    .md-progress-bar-background {
      background: #{_md-progress-bar-buffer($warn, 100)};
    }

    .md-progress-bar-buffer {
      background-color: md-color($warn, 100);
    }
    .md-progress-bar-fill::after {
      background-color: md-color($warn, 600);
    }
  }

  .md-progress-bar-fill::after {
    background-color: md-color($primary, 600);
  }
}

// TODO(josephperrott): Find better way to inline svgs.
// In buffer mode a repeated SVG object is used as a background.
//  Each of the following defines the SVG object for each of the class defined colors.
//
//  The string is a URL encoded version of:
//
//  <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
//       version="1.1" x="0px" y="0px" enable-background="new 0 0 5 2"
//       xml:space="preserve" viewBox="0 0 5 2" preserveAspectRatio="none slice">
//    <circle cx="1" cy="1" r="1" fill="{INJECTED_COLOR}"/>
//  </svg>
@function _md-progress-bar-buffer($palette, $hue) {
 $result: '' +
   'data:image/svg+xml;charset=UTF-8,%3Csvg%20version%3D%271.1%27%20xmlns%3D%27http%3A%2F%2F' +
   'www.w3.org%2F2000%2Fsvg%27%20xmlns%3Axlink%3D%27http%3A%2F%2Fwww.w3.org%2F1999%2Fxlink%2' +
   '7%20x%3D%270px%27%20y%3D%270px%27%20enable-background%3D%27new%200%200%205%202%27%20xml%' +
   '3Aspace%3D%27preserve%27%20viewBox%3D%270%200%205%202%27%20preserveAspectRatio%3D%27none' +
   '%20slice%27%3E%3Ccircle%20cx%3D%271%27%20cy%3D%271%27%20r%3D%271%27%20fill%3D%27' +
    md-color($palette, $hue) + '%27%2F%3E%3C%2Fsvg%3E';

  @return url($result);
}
